A vehicle parking control method based on an EPB system

Abstract

The invention provides a vehicle parking control method based on an EPB system, which is characterized by comprising a vehicle parking process and a vehicle unparking process, wherein the vehicle unparking process is an inverse process of the vehicle parking request process, and comprises the following steps: the driver unparks the vehicle through the EPB switch and the driver unparks the vehiclethrough the P-gear switch of the electronic gear shifter; In the method, the driver pedals on the brake pedal and the accelerator pedal are fully considered in the parking request process of the vehicle, and before the parking is executed, the engine torque limiting process is increased until the predetermined torque value is reached, and then the parking is carried out to realize a smooth transition, and the brake pedal and the accelerator pedal are pedaled. When parking failure or EPB system failure occurs in the process of vehicle parking request, the driver is prompted to start emergency parking to ensure parking safety; Emergency parking is that the driver controls the parking locking mechanism in the gearbox by pulling the cable, which is commonly called small handbrake. It is easy to operate and the cost is very low.

Description

technical field [0001] The invention belongs to the technical field of vehicle parking control, and in particular relates to a vehicle parking control method based on an EPB system. Background technique [0002] In the existing relatively mature vehicle P gear parking technology, the electronic parking control unit integrated on the vehicle gearbox receives the P gear parking signal sent by the vehicle TCU (Transmission Control Unit, transmission controller), It is realized by driving the electronic parking motor and driving the mechanical locking mechanism inside the gearbox, such as a ratchet mechanism, to lock the gear at the output end of the gearbox. [0003] With the development of electronic parking technology, the EPB (Electrical Parking Brake) system has been more and more widely used. The parking brake is realized through the EPB system. When the vehicle is in the parking state, by pressing the EPB switch, the EPB The controller controls the EPB actuator to realiz...

AI Technical Summary

Problems solved by technology

[0009] 4. In the process of releasing the parking, if the driver does not step on the brake pedal, the instrument will not prompt the driver to step on the brake pedal, so that the driver cannot know the correct method of releasing the parking operation

[0010] 5. The process of releasing the parking is simple. The priority of parking through the EPB switch is regarded as the highest, and there is no coordinated control of the process of releasing the parking process through the EPB and the P switch of the electronic shifter.

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